Just after the start of cpufreqd /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq is set to 800000. Cpufreq-info says: root@impala:/usr/local/portage/sys-power(57)# cpufreq-info -c0 cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpufreq@vger.kernel.org, please. analyzing CPU 0: driver: powernow-k8 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 8.0 us. hardware limits: 800 MHz - 3.40 GHz available frequency steps: 3.40 GHz, 2.70 GHz, 2.20 GHz, 800 MHz available cpufreq governors: ondemand, performance current policy: frequency should be within 800 MHz and 800 MHz. The governor "ondemand" may decide which speed to use within this range. current CPU frequency is 800 MHz (asserted by call to hardware). All other cpus have 3.40 GHz as maximal scaling frequency: root@impala:/usr/local/portage/sys-power(59)# cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq 800000 3400000 3400000 3400000 I suppose, that this is a bug of cpufreqd-2.4.2-r1. root@impala:/usr/local/portage/sys-power(60)# emerge -pqv cpufreqd [ebuild R ] sys-power/cpufreqd-2.4.2-r1 USE="acpi lm_sensors -apm -nforce2 -nvidia -pmu" If cpufreqd is running I am not able to increase scaling_max_freq with cpufreq-set. cpufreqd uses the default /etc/cpufreqd.conf If I increase the verbosity in /etc/cpufreqd.conf to 7 I find in /var/log/messages : Apr 5 11:00:57 impala cpufreqd: acpi_post_conf : Initializing AC Apr 5 11:00:57 impala cpufreqd: find_class_device : class device 'power_supply' not found (Success) Apr 5 11:00:57 impala cpufreqd: acpi_ac_init : No AC adapters found Apr 5 11:00:57 impala cpufreqd: acpi_post_conf : Initializing BATTERY Apr 5 11:00:57 impala cpufreqd: find_class_device : class device 'power_supply' not found (Success) Apr 5 11:00:57 impala cpufreqd: acpi_battery_init : No Batteries found ... Apr 5 11:00:57 impala cpufreqd: acpi_battery_update : Re-scanning available batteries Apr 5 11:00:57 impala cpufreqd: acpi_battery_exit : exited. Apr 5 11:00:57 impala cpufreqd: find_class_device : class device 'power_supply' not found (No such file or directory) Apr 5 11:00:57 impala cpufreqd: acpi_battery_init : No Batteries found ... Apr 5 11:00:57 impala cpufreqd: rule_score : Rule "AC Off - Low Battery": ac matches. Apr 5 11:00:57 impala cpufreqd: acpi_battery_evaluate : called 0-30 [Avg:-1] Apr 5 11:00:57 impala cpufreqd: update_rule_scores : Rule "AC Off - Low Battery" score: 51% ... Apr 5 11:00:57 impala cpufreqd: cpufreqd_loop : New Rule ("AC Off - Low Battery"), applying. Apr 5 11:00:57 impala cpufreqd: cpufreqd_set_profile : Couldn't set profile "Powersave Low" set for cpu0 (800000-800000-powersave) Apr 5 11:00:57 impala cpufreqd: cpufreqd_loop : Cannot set policy, Rule unchanged ("none"). It looks, if cpufreqd believes that there is a low battery and that's why it reduces the scaling_max_freq of CPU0. But why only CPU0 and not CPU1-3? And why the power supply is not recognized? Googling for "cpufread does not find power_supply" did not help. Any hint how to handle this situation? Reproducible: Always root@impala:/usr/local/portage/sys-power(70)# emerge --info Portage 2.1.9.45 (default/linux/amd64/10.0, gcc-4.5.2, glibc-2.13-r2, 2.6.38-gentoo-r1 x86_64) ================================================================= System uname: Linux-2.6.38-gentoo-r1-x86_64-AMD_Phenom-tm-_II_X4_965_Processor-with-gentoo-2.0.2 Timestamp of tree: Mon, 04 Apr 2011 08:00:01 +0000 app-shells/bash: 4.2_p8 dev-java/java-config: 2.1.11-r3 dev-lang/python: 2.7.1-r1, 3.1.3-r1 dev-util/cmake: 2.8.4 sys-apps/baselayout: 2.0.2 sys-apps/openrc: 0.8.0 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.21 sys-devel/gcc: 4.5.2 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82 virtual/os-headers: 2.6.38 (sys-kernel/linux-headers) ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA PUEL dlj-1.1 skype-eula googleearth AdobeFlash-10.1 cadsoft" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=amdfam10 -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.0/conf /usr/share/openvpn/easy-rsa /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.2/ext-active/ /etc/php/apache2-php5.3/ext-active/ /etc/php/cgi-php5.2/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cli-php5.2/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=amdfam10 -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="de fr" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/x11 /var/lib/layman/sunrise /var/lib/layman/science /var/lib/layman/lordvan /usr/local/portage /var/lib/cpan /var/lib/g-octave" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext 64bit R X Xaw3d a52 aac abiword accessibility acl acpi admin afs alsa amd64 amrr ao apache2 applet archive arpack asf aspell assistant audacious audiofile automap automount bash-completion berkdb blas blast bluetooth boo boost bzip2 cairo cdda cddb cdf cdio cdparanoia cdr cg cgi chm cli consolekit corba cracklib crypt css cuda cups curl cxx daap db dbase dbi dbm dbus declarative designer devhelp device-mapper dga dia djvu doc dri ds2490 ds9097 ds9097u dv dvb dvd dvdr dvi dynamicplugin eds elf emacs emboss emf empathy encode epiphany evo examples exif expat extensions extra extras fame ffmpeg fftw firefox fits flac fltk fontconfig foomaticdb fortran fortran95 fpx fts3 fuse galago gcj gd gdal gdbm gdu gedit geoip geolocation geos gfortran gif gimp ginac git glade glib gml gmp gmtsuppl gnokii gnome gnome-keyring gnome-print gnuplot gnutls gphoto2 gpm grammar graphics graphtft graphviz grass gs gsl gsm gstreamer gtk guile harness hddtemp hdf hdf5 hdri http httpd hvm iconv icq icu id3 imagemagick imap innodb inotify ipod ipv6 ithreads jabber jadetex java java6 jbig john jpeg jpeg2k kdrive kerberos kpathsea kqemu kvm ladspa lame lapack latex latex3 lcms ldap lensfun libffi libgda libnotify libsamplerate lm_sensors lua lzo mad mail maildir mapnik math matroska mkl mmx mmxext mng modules mono moonlight motif mozilla mp3 mp4 mpeg mpi mplayer mtp mudflap multilib musicbrainz mysql mysqli nautilus ncurses netcdf netpbm network networking networkmanager nfs nls nntp nptl nptlonly nsplugin ntfs ntp numpy obex objc ocaml octave odbc ogdi ogg ole openexr opengl openmp overview pam pcre pda pdf perl plotutils plugins png podcast policykit posix postgres postscript pppd preview-latex proj projectx pstricks pulseaudio pymol python python-bindings q16 q32 qemu qhull qt3support qt4 quicktime readline reiserfs reports rle romio rpc rrdcgi rrdtool samba sasl science sdk sdl secure-delete semantic-desktop server session sip slang slp smbclient smp sms sndfile snmp soup sox speex spell sql sqlite sse sse2 sse4a ssl subtitles subversion suexec svg svm swig sysfs szip t1lib tcl tcpd tex tex4ht texmacs tgif theora threads thunderbird tidy tiff tk tntc tools truetype udev unicode usb userlocales utempter v4l2 video virtualbox vorbis wav webdav webdav-serf webkit wmf wxwidgets xattr xcb xemacs xext xine xml xmlreader xmlrpc xorg xpm xulrunner xv xvid xvmc yaml zlib zvbi" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_dbd authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgid dav dav_fs dav_lock dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de fr" NETBEANS_MODULES="apisupport cnd dlight enterprise ergonomics groovy gsf harness ide identity j2ee java mobility nb php profiler ruby websvccommon xml" PHP_TARGETS="php5-3" QEMU_SOFTMMU_TARGETS="i386 ppc ppc64 x86_64" QEMU_USER_TARGETS="arm i386 x86_64" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nv nouveau vesa" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Still some additional information about my kernel configuration: root@impala:/usr/local/portage/sys-power(73)# gzip -cd /proc/config.gz | grep -i acpi # Power management and ACPI options CONFIG_ACPI=y CONFIG_ACPI_SLEEP=y CONFIG_ACPI_PROCFS=y # CONFIG_ACPI_PROCFS_POWER is not set # CONFIG_ACPI_POWER_METER is not set # CONFIG_ACPI_EC_DEBUGFS is not set CONFIG_ACPI_PROC_EVENT=y CONFIG_ACPI_AC=y # CONFIG_ACPI_BATTERY is not set CONFIG_ACPI_BUTTON=y CONFIG_ACPI_VIDEO=y CONFIG_ACPI_FAN=y # CONFIG_ACPI_DOCK is not set CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_HOTPLUG_CPU=y # CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set CONFIG_ACPI_THERMAL=y # CONFIG_ACPI_CUSTOM_DSDT is not set CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set # CONFIG_ACPI_PCI_SLOT is not set CONFIG_ACPI_CONTAINER=y # CONFIG_ACPI_SBS is not set # CONFIG_ACPI_HED is not set # CONFIG_ACPI_APEI is not set CONFIG_X86_ACPI_CPUFREQ=m CONFIG_PNPACPI=y CONFIG_ATA_ACPI=y # CONFIG_PATA_ACPI is not set # ACPI drivers # ACPI drivers # CONFIG_ACPI_QUICKSTART is not set # CONFIG_THINKPAD_ACPI is not set # CONFIG_ACPI_WMI is not set # CONFIG_ACPI_ASUS is not set # CONFIG_ACPI_TOSHIBA is not set # CONFIG_ACPI_CMPC is not set I will change CONFIG_ACPI_PROCFS_POWER to yes and report the results.
Also if I set CONFIG_ACPI_PROCFS_POWER the power supply is not detected by cpufreqd: root@impala:/root(6)# gzip -cd /proc/config.gz | grep PROCFS_POWER CONFIG_ACPI_PROCFS_POWER=y root@impala:/root(16)# grep -e "power_supply\| AC " /var/log/messages | tail -n6 Apr 5 11:38:50 impala cpufreqd: find_class_device : class device 'power_supply' not found (Success) Apr 5 11:38:50 impala cpufreqd: find_class_device : class device 'power_supply' not found (No such file or directory) Apr 5 12:28:04 impala cpufreqd: find_class_device : class device 'power_supply' not found (Success) Apr 5 12:28:04 impala cpufreqd: acpi_ac_init : No AC adapters found Apr 5 12:28:04 impala cpufreqd: find_class_device : class device 'power_supply' not found (Success) Apr 5 12:28:05 impala cpufreqd: find_class_device : class device 'power_supply' not found (No such file or directory)
*** This bug has been marked as a duplicate of bug 318287 ***
Is this bug really a duplicate of bug 318287? In bug 318287 it is noted that cpufreqd crashes during start. Here is the problem that power supply is not recognized.
